Paper-punch.



J. L. STENQUIST.

PAPER PUNCH. APPLICATION FILED nzc.a.1911.

1 ,292, 1 24 Patented Jan. 21, 1919.

JOHN Il- STENQUIST, OF NEW YORK, N. Y.

PAPER-PUNCH.

Specification of Letters Patent.

Patented Jan. 21, 1919.

Application filed. December 8, 1917. Serial No. 206,176.

To all whom it may concern.-

Be it known that I, JOHN L. STENQUIST, a citizen of the United States,residing in the city, county, and State of New York, have inventedcertain new and useful Improvements in Paper-Punches, of which thefollowing is a specification.

This invention relates to apparatus for punching papers to fit looseleaf binders.

One of the objects of my invention is to provide a simple, compact andinexpensive device which may be removably attached to a loose leafbinder and which will not encumber the binder when in place.

A further object is to provide a device which is adjustable to varioussizes of binders and by means of Which holes may be punched in the paperin proper positions relative to each other and to the edge.

Another object is to provide a device comprising a plurality of punchesslidably mounted on a stiff plate, which plate is adapted to be markedwith a scale, tables or advertising matter, and to act as a placemark,or as a shield to prevent tearing of the outer leaf of the note book.

I attain these objects, as well as others not specifically stated, bymeans of the construction, arrangement and combination of partshereinafter described and claimed, and shown in the accompanyingdrawings in which:

Figure 1 is a plan view of the device and,

Fig. 2 is an enlarged section taken on the line 22 of Fig. 1.

Referring to the drawings, A indicates a fiat narrow plate of cardboardor other suitable stifi' material, upon which is slidably mounted aplurality of punches B. The distance apart at which the holes in thepaper must be punched to fit the binder may be easily regulated bymerely sliding the punches toward or away from each other on the plate.

Each punch is preferably made of a single piece of spring material bentto form a pair of arms 3 and 4, which fit over the rear edge of theplate, and a second pair of arms 5 and 6 adapted to receive the marginaledge of the paper to be punched. The connecting portion 7 of the arms 3and 4 is preferably flared or broadened to provide a wide bear ingsurface against the edge of the plate, and the connecting portion 8 ofthe other pair of arms serves as a stop for the edge of the paper.

9 indicates the male punching die which is carried on the arm 4 andextends through the opening 10 in the arm 5 into registration with theperforation or female die 11 of the arm 6.

A lug 12 having an opening 13 is provlded for attaching the punch to thebinder. The lug is preferably formed integral with the punch by stampingout a tongue shaped portion and bending it backward in the plane of thearm 4.

The front edge of the plate is preferably provided with a scale orgraduated marking 14, and each of the punches with a center line mark 15whereby the punches may be easily adjusted at given distances apart.

In using the device the punches are secured to the binders by means ofthe lugs 12 and the paper is then inserted between the arms 5 and 6.Upon depressing the arm 6, the die members 9 and 10 coact to perforatethe paper and, when the pressure is released, the arm 5, by springingback to 1ts normal position, will automatically strip the paper from themale die member 9. When the device is in place in the binder, the plateA will lie flat upon the outer leaf of the note book and will serve as ashield to prevent tearing of the leaf.

While the device is intended primarily to be used as a permanent part ofthe binder, it is so constructed that it can be easily removed therefromand used as a separate appliance.

Various changes and modifications may be made in the form of the devicedescribed and illustrated herein without departing from the scope of myinvention.

What I claim is:

1. A paper punch comprising a single piece of spring metal bent to formtwo substantially parallel pairs of spaced arms disposed one above theother, the upper pair being perforated, and amale die member mounted onthe uppermost arm of the lower pair and registering with perforations inthe arms of the upper pair.

2. A punch comprising a single piece of spring metal bent to form twosubstantially parallel pairs of spaced arms disposed one above theother, the upper pair being perforated, the connecting portion of thelower pair being widened, and a die member mounted on the uppermost armof the lower pair and registering with perforations in the upper pair.

3. Apparatus for perforating loose leaf sheets comprising a flat plateand rality of punches, each punch having a pair of arms for engagingover 5 plate and ing an edge of the sheet.

4. Apparatus for perforating loose leaf Copies of this patent may beobtained for five cents each,

sheets comprising a flat plate and a plurality of punches, each punchhaving a pair of arms for engaging over an edge of the plate, a secondpair of arms for receiving an edge of the sheet, and a lug for attachingit to a binder.

JOHN L. STENQUIST.

a pluan edge of the a second pair of arms for receivby addressing theGommiwionex' of Fatenta. Washington, D. G."

